GE Lighting 4509 PAR36 Aircraft Landing & Taxi Light – 13V, 100W

The GE 4509 is a sealed-beam PAR36 light designed for aircraft landing, taxi, and ground-movement visibility. Its high-intensity beam helps pilots identify runways, taxiways, obstacles, and surface markings in low-visibility or nighttime conditions. Because the lamp provides focused illumination with a defined horizontal and vertical beam spread, it enhances situational awareness during critical phases of flight. This makes it a popular choice for general aviation, piston singles, turboprops, and helicopters requiring dependable forward-facing lighting.

The GE 4509 operates at 13 volts and consumes 100 watts, making it compatible with most 14V aircraft electrical systems. Its electrical design enables fast response, stable brightness, and dependable output without requiring any warm-up period. The screw-terminal base ensures a secure electrical connection, reducing the risk of flicker or intermittent illumination. These specifications make the lamp a durable, straightforward replacement for many legacy and OEM light assemblies.

The GE Lighting 4509 produces an impressive 110,000 max beam candlepower, delivering a focused and powerful spotlight ideal for landing and taxi operations. Its horizontal beam spread of 12-10 degrees and vertical spread of 6-10 degrees provide a concentrated forward beam with excellent downrange reach. This tight pattern helps pilots see runway surfaces and obstacles at greater distances, contributing to safer nighttime approaches and ground handling. The focused beam also reduces spill light, improving cockpit visibility and reducing glare.

The GE 4509 has a 4.5” (PAR36) diameter and a 2.75” maximum overall length (MOL). These compact dimensions allow the lamp to fit a wide range of aircraft landing-light housings and PAR36-style fixtures. Its sealed-beam construction protects internal components from moisture, dust, and vibration. The standardized sizing makes installation straightforward for technicians replacing existing PAR36 lamps.

The GE Lighting 4509 has a rated life of 25 hours. While this may seem short compared to modern LED alternatives, halogen PAR36 sealed beams, such as the 4509, prioritize maximum brightness and heat concentration, which naturally limits their lifespan. The benefit is consistent, high-output performance that many pilots prefer for landing-light applications. Regular inspection and proper voltage regulation can help optimize service life.

The GE 4509 uses a C-6 filament, a coiled-coil tungsten design optimized for vibration resistance and intense forward illumination. This filament structure helps maintain beam stability in high-vibration aircraft environments. Because the filament is also shielded, the lamp produces a cleaner, more controlled beam pattern. This combination of durability and performance makes the C-6 filament ideal for aviation use.

Yes. The GE 4509 is widely used as both a landing light and a taxi light, depending on aircraft configuration. Its high brightness and tight beam pattern make it excellent for landing illumination, while its controlled spread also works well for taxi operations where good surface definition is essential. Many aircraft use multiple 4509s – one optimized for landing, another angled for taxi visibility.

The GE 4509 is compatible with a broad range of piston, turboprop, light jet, and rotorcraft platforms. Many Cessna, Piper, Beechcraft, and Cirrus models use PAR36 landing-light housings that accept the 4509 without modification. Certain helicopters and experimental aircraft also rely on PAR36 lamps for forward illumination. Because the lamp adheres to standard aviation dimensions (PAR36), it serves as a common replacement option across multiple fleets.

No special hardware is typically required beyond the existing aircraft landing-light housing and screw-terminal connectors. Technicians simply disconnect the old lamp, attach the terminals to the new one, and secure it into the fixture. Because the lamp is sealed-beam, there are no bulbs to replace or internal components to service. Ensuring proper polarity and firm terminal connections helps maximize reliability.

Yes. The GE 4509 is a sealed-beam PAR36 lamp, meaning the filament, reflector, and lens are contained within a single sealed assembly. This prevents contamination from moisture, dust, and environmental debris. Sealed-beam lamps are especially valuable in aviation because they provide consistent output even in harsh operating environments. Once the lamp reaches the end of its life, the entire unit is replaced as a single component.

The GE 4509 uses screw-terminal connections, a common base type for aviation landing and taxi lights. These terminals allow for a secure, vibration-resistant electrical interface. Unlike plug-in bases, screw terminals offer additional protection against intermittent contact. Properly torquing the screws during installation enhances long-term reliability.

The GE 4509 is a halogen lamp rather than an LED, but it is often used as a cost-effective alternative when LED conversion is not desired. While LEDs offer longer life, the 4509 provides the intense brightness and beam focus many pilots prefer. It is also less expensive and requires no modification to existing wiring or housings. For operators prioritizing affordability and OEM-style lighting performance, the GE 4509 remains a practical choice.

The GE 4509 follows standard industry specifications for aircraft landing and taxi lights and is widely accepted as a replacement for numerous OEM installations. Its beam pattern, brightness output, and rugged sealed design align with aviation requirements for forward-facing illumination. While not TSO-certified as a standalone component, it is used extensively in certificated aircraft as an approved replacement lamp. Operators should always verify compatibility with their aircraft maintenance manual.

PAR36 halogen lamps offer strong beam penetration, tight optical control, and high luminous intensity at a relatively low cost. The GE 4509’s sealed-beam design ensures consistent performance even in vibration-prone environments. Halogen PAR36 units also produce warm, high-contrast light that enhances depth perception during landing and taxi operations. For many operators, the combination of affordability and high brightness makes halogen a preferred choice over more expensive alternatives.